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perf thread: Introduce thread__find_map()

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Out of thread__find_add_map(..., MAP__FUNCTION, ...), idea here is to
continue removing references to MAP__{FUNCTION,VARIABLE} ahead of
getting both types of symbols in the same rbtree, as various places do
two lookups, looking first at MAP__FUNCTION, then at MAP__VARIABLE.

So thread__find_map() will eventually do just that, and 'struct symbol'
will have the symbol type, for code that cares about that.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-q27xee34l4izpfau49w103s6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2018-04-24 10:49:50 -03:00
parent e94b861a23
commit f07a2d32b5
12 changed files with 43 additions and 42 deletions
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18
tools/perf/util/event.c
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@@ -1489,9 +1489,8 @@ int perf_event__process(struct perf_tool *tool __maybe_unused,
return machine__process_event(machine, event, sample);
}
void thread__find_addr_map(struct thread *thread, u8 cpumode,
enum map_type type, u64 addr,
struct addr_location *al)
void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
u64 addr, struct addr_location *al)
{
struct map_groups *mg = thread->mg;
struct machine *machine = mg->machine;
@@ -1569,7 +1568,7 @@ void thread__find_addr_location(struct thread *thread,
u8 cpumode, enum map_type type, u64 addr,
struct addr_location *al)
{
thread__find_addr_map(thread, cpumode, type, addr, al);
__thread__find_map(thread, cpumode, type, addr, al);
if (al->map != NULL)
al->sym = map__find_symbol(al->map, al->addr);
else
@@ -1590,7 +1589,7 @@ int machine__resolve(struct machine *machine, struct addr_location *al,
return -1;
dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al);
thread__find_map(thread, sample->cpumode, sample->ip, al);
dump_printf(" ...... dso: %s\n",
al->map ? al->map->dso->long_name :
al->level == 'H' ? "[hypervisor]" : "<not found>");
@@ -1669,10 +1668,11 @@ bool sample_addr_correlates_sym(struct perf_event_attr *attr)
void thread__resolve(struct thread *thread, struct addr_location *al,
struct perf_sample *sample)
{
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al);
if (!al->map)
thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE,
sample->addr, al);
thread__find_map(thread, sample->cpumode, sample->addr, al);
if (!al->map) {
__thread__find_map(thread, sample->cpumode, MAP__VARIABLE,
sample->addr, al);
}
al->cpu = sample->cpu;
al->sym = NULL;